The ins tag allows authors to insert text with the date of insertion.
The text is rendered underlined.
If you use it together with the del element, you can show the old and the new contents with different styles.

Use the dateTime attribute to specify the date and time of the modification.
If you want to attach a document to the insertion that explains why the modification was necessary, use the cite attribute.

If you want to see the HTML tags by categories, please visit this page.